US7789830B2 - Thrombus detecting apparatus, thrombus treating apparatus and methods therefor - Google Patents

Thrombus detecting apparatus, thrombus treating apparatus and methods therefor Download PDF

Info

Publication number
US7789830B2
US7789830B2 US10/579,208 US57920803A US7789830B2 US 7789830 B2 US7789830 B2 US 7789830B2 US 57920803 A US57920803 A US 57920803A US 7789830 B2 US7789830 B2 US 7789830B2
Authority
US
United States
Prior art keywords
thrombus
living body
blood vessel
light
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/579,208
Other languages
English (en)
Other versions
US20070213613A1 (en
Inventor
Kazunari Ishida
Mikihiro Kaga
Naoto Fujita
Jun Kubota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Medical Corp filed Critical Hitachi Medical Corp
Assigned to HITACHI MEDICAL CORPORATION reassignment HITACHI MEDICAL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJITA, NAOTO, ISHIDA, KAZUNARI, KAGA, MIKIHIRO, KUBOTA, JUN
Publication of US20070213613A1 publication Critical patent/US20070213613A1/en
Application granted granted Critical
Publication of US7789830B2 publication Critical patent/US7789830B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02028—Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6822—Neck
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/225—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves
    • A61B17/2256—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for extracorporeal shock wave lithotripsy [ESWL], e.g. by using ultrasonic waves with means for locating or checking the concrement, e.g. X-ray apparatus, imaging means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
    • A61B2017/22084—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance stone- or thrombus-dissolving
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
    • A61B2017/22088—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance ultrasound absorbing, drug activated by ultrasound

Definitions

  • the present invention relates to a thrombus detecting apparatus, which detects a thrombus (a mass of blood) flowing through a blood vessel in a living body, a thrombus treating apparatus, which dissolves and removes the thrombus detected by the thrombus detecting apparatus and methods therefor.
  • a thrombus detecting apparatus which detects a thrombus (a mass of blood) flowing through a blood vessel in a living body
  • a thrombus treating apparatus which dissolves and removes the thrombus detected by the thrombus detecting apparatus and methods therefor.
  • thrombus Since a thrombus induced in a blood vessel in a living body causes to lose fluidity of blood, disturbs blood stream and plugs the blood vessel, the thrombus is one cause for diseases such as vasculopathy. It is said that brain infarction, which is one brain vasculopathy, is primarily caused through embolization of a blood vessel in a brain by a thrombus.
  • JP-A-2001-327495 proposes an ultrasonic wave device, which is constituted so as to specify a thrombus (embolization) portion in a brain blood vessel by making use of an image taking ultrasonic wave device and to perform treatment by irradiating treatment use ultrasonic wave to the thrombus (embolization) portion to dissolve the same.
  • the ultrasonic wave device disclosed in the document such as position and size of the thrombus (embolization) portion induced in the brain blood vessel are grasped by making use of the image taking use ultrasonic waves, and the dissolve treatment use ultrasonic waves are accurately irradiated to the thrombus (embolization) portion.
  • the brain infarction includes such as lacuna infarction, atheroma thrombus infarction and cardiogenic cerebral embolism.
  • the lacuna infarction is one, in which a fine artery in a brain is damaged due to high blood pressure and plugged thereby to form a small infarction nest at a deep portion in the brain.
  • the atheroma thrombus infarction is one, which is caused by narrowing such as an artery at the neck and a comparatively large artery in the skull due to hardening (atheroma hardening) the artery where a thrombus is induced to plug the same completely or the thrombus thus induced peels off and flows out to plug the downstream thereof.
  • the cardiogenic cerebral embolism is one, which is caused when a thrombus induced in a heart is peeled off and flows into an artery in the brain. Further, a cause for vasculopathy can be induced after when an operation such as in obstetrics and gynecology field and in hypogastrium and pelvic, a thrombus is induced and a part of the thrombus is peeled off and flows into an artery.
  • An object of the present invention is to provide a thrombus detecting apparatus, which permits to detect a thrombus, a possible cause of disease, flowing through a blood vessel and a method therefor.
  • Another object of the present invention is to provide a thrombus treating apparatus, which permits to detect a thrombus, a possible cause of disease, flowing through a blood vessel and to dissolve and remove the same and a method therefor.
  • a thrombus detecting apparatus is provided with transducers, which transmit and receive ultrasonic waves, a transmitter and receiver unit, which transmits and applies driving pulses to the transducers and receives echo signals output from the transducers and a detector making use of ultrasonic waves, which processes output signals of the transmitter and receiver unit and detects a thrombus passing through a blood vessel, and/or a light source, which generates living body inspection light, a light receiving unit, which receives the living body inspection light generated from the light source and passed through a subject and outputs electrical signals depending on the intensity of the received living body inspection light and a detector making use of living body light, which processes output signals of the light receiving unit and detects a thrombus passing through a blood vessel.
  • the transducers are disposed near a blood vessel to be monitored and from which ultrasonic waves are transmitted and echo signals are received.
  • a waveform is observed in which the echo signals are reflected at positions of the respective inner walls of the blood vessel (normal waveform).
  • the detection unit making use of ultrasonic waves detects the reflection waveform depending on the size of the thrombus.
  • Probes for the light source are disposed near a blood vessel, from which living body inspection light is irradiated and the light receiving unit receives the living body inspection light passed through inside the blood vessel and converts the same into electrical signals.
  • the light receiving unit receives the living body inspection light passed through inside the blood vessel and converts the same into electrical signals.
  • a flat waveform is observed in which no amplitude of the electrical signals varies.
  • the detection unit making use of the living body light detects that a thrombus has passed when the electrical signals decrease.
  • the detection unit making use of ultrasonic waves shows a high detection sensitivity at a deep portion in the skin and the detection unit making use of the living body light shows a high detection sensitivity at a shallow portion in the skin, thereby the thrombus passing can be detected with a high accuracy.
  • an alarm device alarms the fact by making use of such as sound and image display.
  • the alarm device can be designed in such a manner that the alarm device sets individual alarm levels for the respective detection results of the detection unit making use of ultrasonic waves and the detection unit making use of the living body light and generates individual alarms when the respective alarm levels are reached or alternatively, while correlating the respective detection results of the detection unit making use of ultrasonic waves and the detection unit making use of the living body light, the alarm device generates an alarm when both detection results reach the respective alarm levels.
  • the thrombus detecting apparatus is provided with a portable self-power source. Thereby, the subject can carry the thrombus detecting apparatus and can monitors and detects generation of a thrombus at any time and any place.
  • the thrombus detecting apparatus is provided with a treatment use ultrasonic wave generating apparatus, which transmits ultrasonic waves for dissolving a thrombus flowing in a blood vessel based on the detection result of the detection unit, thereby, when a thrombus is detected, the thrombus dissolving use ultrasonic waves are irradiated immediately for dissolving the thrombus.
  • the treatment can be performed in early time by dissolving and removing the thrombus detected.
  • the alarm device which is a constitutional element for the thrombus detecting apparatus, is an optional device, and when a thrombus is detected the thrombus dissolving use ultrasonic waves are immediately irradiated from the treatment use ultrasonic wave generation apparatus.
  • a display device which displays the operation of the treatment use ultrasonic wave generation apparatus, can be added.
  • the thrombus treating apparatus is provided with a portable self-power source.
  • the subject can carry the thrombus treating apparatus and can monitors and detects generation of a thrombus at any time and any place and can treats in early time by dissolving and removing the thrombus.
  • the thrombus treating apparatus is provided with a living body light measurement apparatus and an injection device and through the use of the injection device a thrombus dissolving agent is injected to a subject depending on the blood stream condition observed by the living body light measurement apparatus.
  • the thrombus treating apparatus is provided with a means which monitors the injection amount of the thrombus dissolving agent by the injection device and the irradiation time of the ultrasonic waves by the treatment use ultrasonic wave generation apparatus and adjusts and controls the injection amount and the irradiation time. Since it is sometimes dangerous for a patient when a large amount of the thrombus dissolving agent is injected or the thrombus dissolving use ultrasonic waves are irradiated for a long time, through the provision of the adjustment and control means the injection amount and the irradiation time are managed.
  • the thrombus treating apparatus is provided with a thrombus dissolving agent activating use ultrasonic wave generating apparatus, which transmits ultrasonic waves to the thrombus dissolving agent for activating the thrombus dissolving agent injected into the blood vessel from the injection device, with which the effect of the injected thrombus dissolving agent can be further enhanced.
  • a thrombus, a possible cause of disease, flowing in the blood vessel can be detected without delay.
  • a thrombus treating apparatus according to the present invention a thrombus, a possible cause of disease, flowing in the blood vessel can be detected without delay and can be dissolved and removed.
  • FIG. 1 is a diagram showing a first embodiment relating to a thrombus detecting apparatus according to the present invention
  • FIG. 2 is a diagram showing a second embodiment relating to a thrombus detecting apparatus according to the present invention
  • FIG. 3 is a diagram showing an attached condition of the thrombus detecting apparatus as shown in FIG. 1 and FIG. 2 on a user;
  • FIG. 4 is a diagram for explaining the operation of the thrombus detecting apparatus as shown in FIG. 1 and FIG. 2 ;
  • FIG. 5 is a diagram showing a third embodiment relating to a thrombus detecting apparatus according to the present invention.
  • FIG. 6 is a diagram showing a fourth embodiment relating to a thrombus detecting apparatus according to the present invention.
  • FIG. 7 is a diagram showing a first embodiment relating to a thrombus treating apparatus according to the present invention.
  • FIG. 8 is a diagram showing a second embodiment relating to a thrombus treating apparatus according to the present invention.
  • FIG. 9 is a diagram showing a third embodiment relating to a thrombus treating apparatus according to the present invention.
  • FIG. 10 is a flowchart showing an operation example of the thrombus treating apparatus as shown in FIG. 9 .
  • FIG. 1 is a diagram showing a first embodiment relating to a thrombus detecting apparatus according to the present invention.
  • the thrombus detecting apparatus is designed to detect number of thrombi having a size larger than a predetermined one flowing through a blood vessel by making use of ultrasonic waves and includes an ultrasonic wave transducer 10 , a transmitter and receiver unit 11 , a thrombus counting unit 12 , an alarm device 13 and a power source 15 therefor, wherein the transmitter and receiver unit 11 , the thrombus counting unit 12 , the alarm device 13 and the power source 15 are provided in the main body side of the thrombus detecting apparatus 1 and the ultrasonic wave transducer 10 is led out from the thrombus detecting apparatus 1 via a cable 14 .
  • the ultrasonic wave transducer 10 is an ultrasonic wave probe used such as in an ordinary ultrasonic wave diagnosis apparatus, and which generates ultrasonic waves by converting pulse like electrical signals into mechanical vibrations and further converts mechanical vibrations due to reflection echoes from a subject into pulse like electrical signals.
  • the ultrasonic waves generated from the ultrasonic wave transducer 10 are set to be concentrated to a blood vessel 6 representing a predetermined focusing position via a skin 5 of the subject.
  • the transmitter and receiver unit 11 generates pulse signals for driving the ultrasonic wave transducer 10 and transmits the same as well as amplifies weak echo signals output from the ultrasonic wave transducer 10 , which is vibrated by the ultrasonic waves reflected from the inside of the subject and outputs the same to the thrombus counting unit 12 .
  • the thrombus counting unit 12 detects thrombi having a size larger than a predetermined size passed through the blood vessel 6 based on the amplified echo signals, counts the detected number and outputs the count value to the alarm device 13 .
  • the alarm device 13 informs to the user of the thrombus detecting apparatus as an alarm such as by displaying the fact and by generating a sound.
  • FIG. 2 is a diagram showing a second embodiment relating to a thrombus detecting apparatus according to the present invention.
  • the thrombus detecting apparatus is designed to detect thrombus having a size larger than a predetermined size or number thereof flowing through a blood vessel by making use of a living body light measurement apparatus, which receives light passed through a living body and measures conditions inside the living body and is constituted by a control unit 20 , a laser diode 21 , a living body light measurement probe 22 , an irradiation light optical fiber 23 , a detection light optical fiber 24 , a photo diode 25 , a measurement unit 26 , an alarm device 27 , and a power source 27 therefor.
  • the control unit 20 , the laser diode 21 , the photo diode 25 , the measurement unit 26 , the alarm device 27 and the power source 28 are provided in the main body side of the thrombus detecting apparatus 2 and the living body light measurement probe 22 is led out from the thrombus detecting apparatus 2 via the irradiation light optical fiber 23 and the detection light optical fiber 24 .
  • the living body light measurement probe 22 includes a light emitting top end 23 a of the irradiation light optical fiber 23 and a light receiving top end 24 a of the detection light optical fiber 24 .
  • the control unit 20 outputs driving signals to the laser diode 21 for outputting from the laser diode 21 two light having different measurement wavelength, for example two near infrared light having wavelength of 780 nm and 830 nm.
  • the laser diode 21 outputs the light having the wavelength corresponding to the driving signals to the irradiation light optical fiber 23 . Thereby, the light is emitted from the light emitting top end 23 a in the living body light measurement probe 22 .
  • the emitted light passes the skin 5 and the blood vessel 6 of the subject and enters to the light receiving top end 24 a in the living body light measurement probe 22 as living body inspection light.
  • the detection light optical fiber 24 guides the entered light from the light receiving top end 24 a to a light receiving face of the photo diode 25 .
  • the photo diode 25 receives the living body inspection light passed through the skin 5 and the blood vessel 6 of the subject and outputs electrical signals depending on the intensity of the received living body inspection light to the measurement unit 26 .
  • the measurement unit 26 detects a thrombus having a size larger than a predetermined size passed inside the blood vessel 6 based on the electrical signals output from the photo diode 25 , counts number of detection and outputs the count value to the alarm device 27 . When the count value from the measurement unit 26 reaches more than a predetermined number, the alarm device 27 informs to the user of the thrombus detecting apparatus as an alarm such as by displaying the fact and by generating a sound.
  • FIG. 3 is a diagram showing an attached condition of the thrombus detecting apparatus as explained in FIG. 1 and FIG. 2 on a user.
  • the size of the thrombus detecting apparatus is about what a human body 30 can always carry as shown in the drawing.
  • the human body 30 carries the thrombus detecting apparatus 1 or 2
  • the ultrasonic wave transducer 10 or the living body light measurement probe 30 is attached on the skin near a blood vessel at the scruff of the neck and prepares to detect a thrombus having a size larger than a predetermined size flowing through the blood vessel.
  • the human body can perform such as other works and spend an ordinary life while carrying the thrombus detecting apparatus.
  • a system can be built in which before attaching the apparatus on the user, a doctor sets a notification level of the user depending on the state of the disease and when the thrombus detecting apparatus generates an alarm, the alarm is notified to a medical institution such as it's regular hospital or to a fire department for calling an ambulance via a wireless line (such as cell phone communication network).
  • a wireless line such as cell phone communication network
  • FIG. 4 is a diagram for explaining the operation of the thrombus detecting apparatus as shown in FIG. 1 and FIG. 2 .
  • the echo signals show a waveform in which the echo signals are reflected at positions of the respective inner wall portions of the blood vessel 6 and the electrical signals of the penetrating living body light show a flat waveform with no amplitude variation.
  • the echo signals show another waveform depending on the size occupied by the thrombus 61 between the two waves in addition to the waveform (normal waveform) in which the echo signals are reflected at positions of the respective inner walls of the blood vessel and the electrical signals of the penetrating living body light show a waveform of which amplitude temporarily decreases due to partial absorption of the penetrating living body inspection light by the thrombus.
  • the thrombus counting unit 12 or the measurement unit 26 detects that a thrombus has passed through the blood vessel 6 based on such signal variation and determines the number of such thrombus passing.
  • FIG. 5 is a diagram showing a third embodiment relating to a thrombus detecting apparatus according to the present invention.
  • FIG. 5 thrombus detecting apparatus is a combination of FIG. 1 thrombus detecting apparatus 1 making use of ultrasonic waves and FIG. 2 thrombus detecting apparatus 2 making use of living body light.
  • FIG. 5 since the same reference numerals are assigned to the same constituents as in FIGS. 1 and 2 , the explanation thereof is omitted.
  • FIG. 5 through combining both, the different features of the detection sensitivity of both depending on the depth from the skin are advantageously utilized and a thrombus passing can be detected with a high accuracy.
  • the measurement depth is about 20 mm
  • the measurement making use of ultrasonic waves the measurement depth is about from 20 mm to 240 mm, therefore, both measurements are used differently, in that when measuring a blood vessel at a deep portion the measurement making use of ultrasonic waves is used and when measuring a blood vessel at a shallow portion the measurement making use of living body light is used.
  • FIG. 6 is a diagram showing a fourth embodiment relating to a thrombus detecting apparatus according to the present invention.
  • FIG. 6 thrombus detecting apparatus is a combination of FIG. 1 thrombus detecting apparatus 1 making use of ultrasonic waves and FIG. 2 thrombus detecting apparatus 2 making use of living body light, and a different point from FIG. 5 is that the alarm devices 13 and 27 in FIG. 5 are constituted by a single common alarm device 60 .
  • the alarm devices 13 and 27 in FIG. 5 are constituted so as to operate separately, the alarm device 60 of the present embodiment is constituted so as to generate an alarm based on a counted value from the thrombus counting unit 12 and the measurement unit 26 .
  • the alarm device 60 generates an alarm when both counted values from the thrombus counting unit 12 and the measurement unit 26 exceed a predetermined value. Further, when one of the counted values exceeds the predetermined value and the other is slightly below the predetermined value, it is possible to design to permit to generate an alarm. Further, the predetermined count values can be determined differently for the thrombus counting unit 12 and the measurement unit 26 .
  • FIG. 7 is a diagram showing a first embodiment relating to a thrombus treating apparatus according to the present invention.
  • the thrombus treating apparatus as shown in FIG. 7 is one in which a treatment use transducer 71 and a control unit 70 are added to the thrombus detecting apparatus as shown in FIG. 1 .
  • the control unit 70 supplies to the treatment use transducer 71 drive pulses having frequency of 100 ⁇ 500 [kHz] and intensity of 0.5 ⁇ 1.5 [W/cm 2 ] in response to a signal from the alarm generating device 13 .
  • the drive pulses supplied to the detection use transducer 10 have a frequency of 3 [kHz] and intensity of about 1/10 of the above.
  • these numeral values are only an example and values other than the above can of course be used.
  • the alarm device 13 generates an alarm when the count value from the thrombus counting unit 12 exceeds the predetermined value
  • the signal to the control unit 70 is designed to be output every time when the count value from the thrombus counting unit 12 is input to the alarm device 13 .
  • the count value from the thrombus counting unit 12 can be directly input to the control unit 70 and based on the input the control unit 70 can output the drive pulses to the treatment use transducer 71 . In this instance, the alarm device 13 can be omitted.
  • FIG. 8 is a diagram showing a second embodiment relating to a thrombus treating apparatus according to the present invention.
  • the thrombus treating apparatus as shown in FIG. 8 is one in which a treatment use transducer 71 is added to the thrombus detecting apparatus as shown in FIG. 2 .
  • the control unit 70 supplies to the treatment use transducer 71 drive pulses having frequency of 100 ⁇ 500 [kHz] and intensity of 0.5 ⁇ 1.5 [W/cm 2 ] in response to a signal from the alarm device 27 .
  • the alarm device 27 generates an alarm when the count value from the measurement unit 26 exceeds the predetermined value
  • the signal to the control unit 70 is designed to be output every time when the count value from the measurement unit 26 is input to the alarm device 27 .
  • the count value from the measurement unit 26 can be directly input to the control unit 70 and based on the input the control unit 70 can output the drive pulses to the treatment use transducer 71 .
  • the alarm device 27 can be omitted.
  • FIGS. 7 and 8 embodiments although an example of adding the treatment use ultrasonic wave transducer to the FIGS. 1 and 2 thrombus detecting apparatus is explained, like treatment use transducer can be added to FIGS. 5 and 6 thrombus detecting apparatus.
  • FIG. 9 is a diagram showing a third embodiment relating to a thrombus treating apparatus according to the present invention.
  • the thrombus treating apparatus as shown in FIGS. 7 and 8 are one in which the treatment use ultrasonic wave transducer is added to the potable thrombus detecting apparatus as shown in FIGS. 1 and 2 , the thrombus treating apparatus as shown in FIGS. 7 and 8 are of course portable.
  • FIG. 9 thrombus treating apparatus is one used in a medical facility such as a hospital, in addition to FIGS. 1 and 2 thrombus detecting apparatus a treatment use ultrasonic wave transducer, a thrombus dissolving agent injection device as well as a living body light measurement apparatus are provided.
  • a control unit 90 is for controlling the entirety of FIG. 9 thrombus treating apparatus. The operation of the control unit 90 will be explained together with the respective constitutional elements.
  • a thrombus detection unit 91 is constituted by the transmitter and receiver unit 11 and the thrombus counting unit 12 as shown in FIG. 1 , detects a thrombus flowing through a blood vessel by making use of the detection use transducer 10 attached to the skin nearest to a blood vessel at the scruff of the neck of the human body 30 and outputs the detection signals to the control unit 90 .
  • the control unit 90 senses that a thrombus is passing through the blood vessel based on the detection signals output from the thrombus detection unit 91 and outputs a thrombus treatment starting signal to a ultrasonic wave transmission unit 92 . Further, in place of the thrombus detection unit 91 and the detection use transducer 10 , the thrombus detecting apparatus 2 and the living body light measurement probe 22 as shown in FIG. 2 can be used.
  • the ultrasonic wave transmission unit 92 supplies drive pulses to treatment use transducers 92 a and 92 b in response to the input of the thrombus treatment starting signal from the control unit 90 .
  • the treatment use transducers 92 a and 92 b are attached to a head portion of the human body 30 and irradiates thrombus dissolving use ultrasonic waves to the head portion of the human body 30 in response to the drive pulses from the ultrasonic wave transmission unit 92 as well as irradiates ultrasonic waves for activating the thrombus dissolving agent to a blood vessel of the human body 30 which will be explained later.
  • a living body light measurement apparatus 93 irradiates two light having different wavelength, for example, two near infrared light having wavelength of 780 nm and 830 nm after modulating the same with different plural frequencies into the head portion by making use of a probe 93 c attached to the head portion of the human body 30 , receives respective living body inspection light having the two wavelengths irradiated and passed inside the head portion, produces two electrical signals depending on the intensity of the received two inspection light and measures a state of blood stream in the blood vessel within the living body (herein in the head portion) based on the produced signals.
  • the control unit 90 outputs a starting signal for monitoring the state of blood stream to the living body light measurement apparatus 93 and takes in a signals representing the blood stream state detected by the living body light measurement apparatus 93 .
  • An injector drive unit 94 is for injecting thrombus dissolving agent into the human body with an injection probe 94 a depending on the blood stream state detected by the living body light measurement apparatus 93 . Since the injection of the thrombus dissolving agent may increase a danger of hemorrhagic adverse effect at the outside of the infarction portion, the injection amount thereof should be strictly controlled. In the present embodiment, the injection amount of the thrombus dissolving agent is controlled by the control unit 90 .
  • a monitor 95 On a monitor 95 , respective operating conditions of the thrombus detection unit 91 , the ultrasonic wave transmission unit 92 , the living body light measurement apparatus 93 and the injector drive unit 94 are displayed.
  • a monitor image 95 a is displayed as an example of the monitor 95 .
  • the monitor image 95 a is constituted such as by a thrombus monitor, an ultrasonic wave irradiation monitor, a living body light measurement image and a dissolving agent monitor.
  • On the thrombus monitor such as a total number of thrombi having a size larger than a predetermined size detected by the thrombus detection unit 91 and a graph showing detection frequency along time as abscissa are displayed.
  • ultrasonic wave irradiation monitor such as a characteristic value and irradiation time of treatment use ultrasonic waves are displayed.
  • living body light measurement image such as an image illustrating a blood stream state in a blood vessel measured by the living body light measurement apparatus is displayed.
  • dissolving agent monitor such as an amount of dissolving agent injected and the injection time are displayed.
  • FIG. 10 is a flowchart showing an operation example of the thrombus treating apparatus as shown in FIG. 9 .
  • the operation of the thrombus treating apparatus will be explained according to the step order.
  • step S 100 it is judged whether a predetermined number of thrombi flowing through the blood vessel is detected by the thrombus detection unit 91 and when judged detected (YES), the process advances to step S 101 and when (NO), the process is repeatedly executed until the predetermined number of thrombi is detected.
  • step S 101 since the predetermined number of thrombi is detected by the thrombus detection unit 91 , a thrombus treatment starting signal is sent out to the ultrasonic wave transmission unit 92 , drive pulses are supplied to the treatment use transducers 92 a and 92 b and treatment use ultrasonic waves are transmitted to the head portion.
  • step S 102 a state of blood stream in a blood vessel inside the living body (head portion) is measured by the living body light measurement apparatus 93 .
  • step S 103 it is judged whether the result of blood stream check by the living body light measurement apparatus 93 is problematic and when judged problematic (YES), the process advances to the subsequent step S 104 and a predetermined amount of thrombus dissolving agent is injected, and when judged no problematic (NO) the process returns to S 100 .
  • step S 105 it is judged whether the amount of thrombus agent already injected by the injector drive unit 94 reaches the maximum value and when judged reached (YES), the process jumps to step S 107 and when judged not yet reached (NO), the process advances to the subsequent step S 106 .
  • step S 106 the dissolving agent is injected again by the injector drive unit 94 .
  • step S 107 in association with the injection of the dissolving agent and in order to activate the dissolving agent, the drive pulses are supplied to the treatment use transducers 92 a and 92 b from the ultrasonic wave transmission unit 92 , and for example, ultrasonic waves having frequency of 20 [kHz] ⁇ 2 [MHz] and intensity of 0.1 ⁇ 1.0 [W/cm 2 ] are transmitted.
  • step S 108 it is judged whether the transmission time of the treatment use ultrasonic waves as well as the dissolving agent activation use ultrasonic waves is reached to the limit, and when judged not reached (NO), the process returns to step S 102 and when judged reached (YES), the treatment finishes.
  • a treatment use transducer which outputs thrombus dissolving use ultrasonic waves can be separately provided near the detection use transducer 10 . Then, the transmission of the treatment use ultrasonic waves in step S 101 can be performed by the separately provided treatment use transducer or by both treatment use transducers.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Cardiology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)
US10/579,208 2003-11-14 2003-11-14 Thrombus detecting apparatus, thrombus treating apparatus and methods therefor Expired - Fee Related US7789830B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/014540 WO2005046482A1 (fr) 2003-11-14 2003-11-14 Detecteur de thrombus, dispositif de traitement de thrombus et methodes correspondantes

Publications (2)

Publication Number Publication Date
US20070213613A1 US20070213613A1 (en) 2007-09-13
US7789830B2 true US7789830B2 (en) 2010-09-07

Family

ID=34587063

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/579,208 Expired - Fee Related US7789830B2 (en) 2003-11-14 2003-11-14 Thrombus detecting apparatus, thrombus treating apparatus and methods therefor

Country Status (5)

Country Link
US (1) US7789830B2 (fr)
EP (1) EP1685800B1 (fr)
CN (1) CN1878504A (fr)
DE (1) DE60335921D1 (fr)
WO (1) WO2005046482A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012023140A1 (fr) 2010-08-18 2012-02-23 Sasi Solomon Dispositif et procédé de détection d'un embole se déplaçant dans un vaisseau sanguin
US8280484B2 (en) 2007-12-18 2012-10-02 The Invention Science Fund I, Llc System, devices, and methods for detecting occlusions in a biological subject
US8317776B2 (en) 2007-12-18 2012-11-27 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US8409132B2 (en) 2007-12-18 2013-04-02 The Invention Science Fund I, Llc Treatment indications informed by a priori implant information
US8636670B2 (en) 2008-05-13 2014-01-28 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US8690818B2 (en) 1997-05-01 2014-04-08 Ekos Corporation Ultrasound catheter for providing a therapeutic effect to a vessel of a body
US8696612B2 (en) 2001-12-03 2014-04-15 Ekos Corporation Catheter with multiple ultrasound radiating members
US8740835B2 (en) 2010-02-17 2014-06-03 Ekos Corporation Treatment of vascular occlusions using ultrasonic energy and microbubbles
US8764700B2 (en) 1998-06-29 2014-07-01 Ekos Corporation Sheath for use with an ultrasound element
US8852166B1 (en) 2002-04-01 2014-10-07 Ekos Corporation Ultrasonic catheter power control
US9044568B2 (en) 2007-06-22 2015-06-02 Ekos Corporation Method and apparatus for treatment of intracranial hemorrhages
US9107590B2 (en) 2004-01-29 2015-08-18 Ekos Corporation Method and apparatus for detecting vascular conditions with a catheter
US9579494B2 (en) 2013-03-14 2017-02-28 Ekos Corporation Method and apparatus for drug delivery to a target site
US9672471B2 (en) 2007-12-18 2017-06-06 Gearbox Llc Systems, devices, and methods for detecting occlusions in a biological subject including spectral learning
US9849273B2 (en) 2009-07-03 2017-12-26 Ekos Corporation Power parameters for ultrasonic catheter
US10092742B2 (en) 2014-09-22 2018-10-09 Ekos Corporation Catheter system
US10182833B2 (en) 2007-01-08 2019-01-22 Ekos Corporation Power parameters for ultrasonic catheter
US10188410B2 (en) 2007-01-08 2019-01-29 Ekos Corporation Power parameters for ultrasonic catheter
US10232196B2 (en) 2006-04-24 2019-03-19 Ekos Corporation Ultrasound therapy system
US10322230B2 (en) 2016-06-09 2019-06-18 C. R. Bard, Inc. Systems and methods for correcting and preventing occlusion in a catheter
US10656025B2 (en) 2015-06-10 2020-05-19 Ekos Corporation Ultrasound catheter
US10888657B2 (en) 2010-08-27 2021-01-12 Ekos Corporation Method and apparatus for treatment of intracranial hemorrhages
US11458290B2 (en) 2011-05-11 2022-10-04 Ekos Corporation Ultrasound system

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8353896B2 (en) 2004-04-19 2013-01-15 The Invention Science Fund I, Llc Controllable release nasal system
US8512219B2 (en) 2004-04-19 2013-08-20 The Invention Science Fund I, Llc Bioelectromagnetic interface system
US9011329B2 (en) * 2004-04-19 2015-04-21 Searete Llc Lumenally-active device
DE112005003445T5 (de) * 2005-02-25 2008-01-24 Byung Hoon Lee Mobiltelefon mit einem Stethoskop
DE102006009996A1 (de) 2006-03-03 2007-09-06 Albrecht Dr. Elsässer Stent
US20120035439A1 (en) 2006-04-12 2012-02-09 Bran Ferren Map-based navigation of a body tube tree by a lumen traveling device
US8936629B2 (en) 2006-04-12 2015-01-20 Invention Science Fund I Llc Autofluorescent imaging and target ablation
US20090156932A1 (en) 2007-12-13 2009-06-18 Board Of Trustees Of The University Of Arkansas Device and method for in vivo flow cytometry using the detection of photoacoustic waves
US9451884B2 (en) 2007-12-13 2016-09-27 Board Of Trustees Of The University Of Arkansas Device and method for in vivo detection of clots within circulatory vessels
US9144383B2 (en) 2007-12-13 2015-09-29 The Board Of Trustees Of The University Of Arkansas Device and method for in vivo noninvasive magnetic manipulation of circulating objects in bioflows
JP5283700B2 (ja) * 2008-07-11 2013-09-04 国立大学法人 筑波大学 血管特性計測装置及び血管特性計測方法
RU2532296C2 (ru) * 2009-05-13 2014-11-10 Сумитомо Электрик Индастриз, Лтд. Устройство анализа стенки кровеносного сосуда и способ анализа стенки кровеносного сосуда
JP5658146B2 (ja) * 2009-05-13 2015-01-21 住友電気工業株式会社 血管内壁分析装置
CN102018497A (zh) * 2010-12-30 2011-04-20 广州宝胆医疗器械科技有限公司 一种表层血管显示仪
CN102871645A (zh) * 2011-07-11 2013-01-16 浙江大学 近红外成像超声血管治疗仪
US10238483B2 (en) 2011-09-16 2019-03-26 3Dt Holdings, Llc Devices and methods for assisting valve function, replacing venous valves, and predicting valve treatment success
JP5984252B2 (ja) * 2012-04-13 2016-09-06 東芝メディカルシステムズ株式会社 超音波診断装置、画像処理装置及びプログラム
CA2884954A1 (fr) 2012-09-25 2014-04-03 Mark S. Smeltzer Dispositif et methode pour le diagnostic photoacoustique in vivo et la purge photothermique du sang infecte
CN105455848A (zh) * 2014-09-05 2016-04-06 鸿富锦精密工业（深圳）有限公司 具有自动求救功能的可穿戴式装置和自动求救方法
WO2016109831A1 (fr) 2014-12-31 2016-07-07 Board Of Trustees Of The University Of Arkansas Dispositifs et procédés de cytométrie en flux photo-acoustique fractionnée
US10080653B2 (en) 2015-09-10 2018-09-25 Edwards Lifesciences Corporation Limited expansion heart valve
DE102015222496B3 (de) 2015-11-13 2016-11-17 David Blömer System und Verfahren zur Verbesserung des Blutflusses
US20190110696A1 (en) * 2016-03-31 2019-04-18 Designplex Biomedical, Llc Vascular monitoring system
CN108742773A (zh) * 2018-06-12 2018-11-06 河南科技大学第附属医院 一种心血管超声溶栓装置
USD908874S1 (en) 2018-07-11 2021-01-26 Edwards Lifesciences Corporation Collapsible heart valve sizer
CN109124688A (zh) * 2018-10-09 2019-01-04 南昌航空大学 一种穿戴式超声血栓检测装置
CN112120758A (zh) * 2020-09-07 2020-12-25 西安交通大学医学院第一附属医院 一种动静脉内瘘局部血栓预防清除装置及其使用方法
CN112370079B (zh) * 2020-11-18 2022-08-26 景德镇陶瓷大学 一种利用超声多普勒检测血栓的方法
CN113693630A (zh) * 2021-08-31 2021-11-26 黑龙江泰金科技有限公司 一种基于超声波分离血脂大分子凝聚团的人体理疗仪

Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0349754A (ja) 1989-07-17 1991-03-04 Nitto Denko Corp 超音波治療器
JPH03146071A (ja) 1989-11-01 1991-06-21 Olympus Optical Co Ltd 体内埋込み型薬液注入装置
JPH05220152A (ja) 1991-08-21 1993-08-31 Toshiba Corp 血栓溶解治療装置
US5305745A (en) * 1988-06-13 1994-04-26 Fred Zacouto Device for protection against blood-related disorders, notably thromboses, embolisms, vascular spasms, hemorrhages, hemopathies and the presence of abnormal elements in the blood
US5307816A (en) 1991-08-21 1994-05-03 Kabushiki Kaisha Toshiba Thrombus resolving treatment apparatus
US5348015A (en) 1992-09-17 1994-09-20 Applied Physiology And Medicine Method and apparatus for ultrasonically detecting, counting and/or characterizing emboli
US5441051A (en) 1995-02-09 1995-08-15 Hileman; Ronald E. Method and apparatus for the non-invasive detection and classification of emboli
US5502651A (en) 1994-05-02 1996-03-26 Jackson; R. David Potentiophotometric fibrinogen determination
JPH09262287A (ja) 1996-03-28 1997-10-07 Terumo Corp 薬液注入装置
JPH09276352A (ja) 1996-04-02 1997-10-28 Exogen Inc 超音波骨治療装置
WO2000027288A1 (fr) 1998-11-11 2000-05-18 Spencer Technologies, Inc. Methode d'echographie doppler aux fins de la surveillance du debit sanguin et dispositif correspondant
JP2000210300A (ja) 1999-01-22 2000-08-02 Toshiba Corp 超音波治療装置
WO2000057793A1 (fr) 1999-03-29 2000-10-05 Hitachi Medical Corporation Instrument de mesure optique biologique
WO2000057946A1 (fr) 1999-03-26 2000-10-05 Transon, Llc Procede et appareil pour traiter d'urgence un patient souffrant d'une occlusion vasculaire thrombotique
WO2000072756A1 (fr) 1999-05-28 2000-12-07 Vuesonix Sensors, Inc. Dispositif et procede de mappage et de reperage du debit sanguin et determination des parametres du debit sanguin
US6176842B1 (en) * 1995-03-08 2001-01-23 Ekos Corporation Ultrasound assembly for use with light activated drugs
JP3146071B2 (ja) 1992-06-29 2001-03-12 キヤノン株式会社 画像送信装置、及び画像送信方法
JP2001327495A (ja) 2000-05-19 2001-11-27 Shimadzu Corp 超音波装置
US6397098B1 (en) 1994-09-21 2002-05-28 Medrad, Inc. Data communication and control for medical imaging systems
WO2002045572A2 (fr) 2000-12-06 2002-06-13 Spentech, Inc. Procede doppler a ultrasons et appareil de surveillance du flux sanguin et de detection de nephrite de lohlein
US20020138003A1 (en) * 2001-02-12 2002-09-26 Shmuel Bukshpan Method for ultrasonic coronary thrombolysis
JP2002345787A (ja) 2001-05-29 2002-12-03 Institute Of Tsukuba Liaison Co Ltd 血栓計測装置
JP2003070787A (ja) 2001-08-31 2003-03-11 Toshiyuki Saito 肺血栓・塞栓症の検出モニター装置
JP2003190170A (ja) 2001-12-21 2003-07-08 Aloka Co Ltd 超音波診断治療装置
JP2003235846A (ja) 2002-02-13 2003-08-26 Toshiyuki Saito ドップラー・エコーを利用した肺血栓・塞栓症の検出モニター装置
WO2003090599A2 (fr) 2002-04-25 2003-11-06 Brainsgate Ltd. Methodes et appareil permettant de modifier les proprietes de la barriere hemato-encephalique et de la circulation cerebrale a l'aide d'effets neuroexcitateurs et/ou neuroinhibiteurs d'agents odorants sur les nerfs de la tete

Patent Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305745A (en) * 1988-06-13 1994-04-26 Fred Zacouto Device for protection against blood-related disorders, notably thromboses, embolisms, vascular spasms, hemorrhages, hemopathies and the presence of abnormal elements in the blood
JPH0349754A (ja) 1989-07-17 1991-03-04 Nitto Denko Corp 超音波治療器
JPH03146071A (ja) 1989-11-01 1991-06-21 Olympus Optical Co Ltd 体内埋込み型薬液注入装置
JPH05220152A (ja) 1991-08-21 1993-08-31 Toshiba Corp 血栓溶解治療装置
US5307816A (en) 1991-08-21 1994-05-03 Kabushiki Kaisha Toshiba Thrombus resolving treatment apparatus
JP3146071B2 (ja) 1992-06-29 2001-03-12 キヤノン株式会社 画像送信装置、及び画像送信方法
US5348015A (en) 1992-09-17 1994-09-20 Applied Physiology And Medicine Method and apparatus for ultrasonically detecting, counting and/or characterizing emboli
US5502651A (en) 1994-05-02 1996-03-26 Jackson; R. David Potentiophotometric fibrinogen determination
US6397098B1 (en) 1994-09-21 2002-05-28 Medrad, Inc. Data communication and control for medical imaging systems
US5441051A (en) 1995-02-09 1995-08-15 Hileman; Ronald E. Method and apparatus for the non-invasive detection and classification of emboli
US6176842B1 (en) * 1995-03-08 2001-01-23 Ekos Corporation Ultrasound assembly for use with light activated drugs
JPH09262287A (ja) 1996-03-28 1997-10-07 Terumo Corp 薬液注入装置
JPH09276352A (ja) 1996-04-02 1997-10-28 Exogen Inc 超音波骨治療装置
WO2000027288A1 (fr) 1998-11-11 2000-05-18 Spencer Technologies, Inc. Methode d'echographie doppler aux fins de la surveillance du debit sanguin et dispositif correspondant
JP2000210300A (ja) 1999-01-22 2000-08-02 Toshiba Corp 超音波治療装置
WO2000057946A1 (fr) 1999-03-26 2000-10-05 Transon, Llc Procede et appareil pour traiter d'urgence un patient souffrant d'une occlusion vasculaire thrombotique
WO2000057793A1 (fr) 1999-03-29 2000-10-05 Hitachi Medical Corporation Instrument de mesure optique biologique
WO2000072756A1 (fr) 1999-05-28 2000-12-07 Vuesonix Sensors, Inc. Dispositif et procede de mappage et de reperage du debit sanguin et determination des parametres du debit sanguin
JP2001327495A (ja) 2000-05-19 2001-11-27 Shimadzu Corp 超音波装置
WO2002045572A2 (fr) 2000-12-06 2002-06-13 Spentech, Inc. Procede doppler a ultrasons et appareil de surveillance du flux sanguin et de detection de nephrite de lohlein
US20020138003A1 (en) * 2001-02-12 2002-09-26 Shmuel Bukshpan Method for ultrasonic coronary thrombolysis
JP2002345787A (ja) 2001-05-29 2002-12-03 Institute Of Tsukuba Liaison Co Ltd 血栓計測装置
JP2003070787A (ja) 2001-08-31 2003-03-11 Toshiyuki Saito 肺血栓・塞栓症の検出モニター装置
JP2003190170A (ja) 2001-12-21 2003-07-08 Aloka Co Ltd 超音波診断治療装置
JP2003235846A (ja) 2002-02-13 2003-08-26 Toshiyuki Saito ドップラー・エコーを利用した肺血栓・塞栓症の検出モニター装置
WO2003090599A2 (fr) 2002-04-25 2003-11-06 Brainsgate Ltd. Methodes et appareil permettant de modifier les proprietes de la barriere hemato-encephalique et de la circulation cerebrale a l'aide d'effets neuroexcitateurs et/ou neuroinhibiteurs d'agents odorants sur les nerfs de la tete

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8690818B2 (en) 1997-05-01 2014-04-08 Ekos Corporation Ultrasound catheter for providing a therapeutic effect to a vessel of a body
US8764700B2 (en) 1998-06-29 2014-07-01 Ekos Corporation Sheath for use with an ultrasound element
US10080878B2 (en) 2001-12-03 2018-09-25 Ekos Corporation Catheter with multiple ultrasound radiating members
US9415242B2 (en) 2001-12-03 2016-08-16 Ekos Corporation Catheter with multiple ultrasound radiating members
US10926074B2 (en) 2001-12-03 2021-02-23 Ekos Corporation Catheter with multiple ultrasound radiating members
US8696612B2 (en) 2001-12-03 2014-04-15 Ekos Corporation Catheter with multiple ultrasound radiating members
US8852166B1 (en) 2002-04-01 2014-10-07 Ekos Corporation Ultrasonic catheter power control
US9943675B1 (en) 2002-04-01 2018-04-17 Ekos Corporation Ultrasonic catheter power control
US9107590B2 (en) 2004-01-29 2015-08-18 Ekos Corporation Method and apparatus for detecting vascular conditions with a catheter
US10232196B2 (en) 2006-04-24 2019-03-19 Ekos Corporation Ultrasound therapy system
US11058901B2 (en) 2006-04-24 2021-07-13 Ekos Corporation Ultrasound therapy system
US12064650B2 (en) 2006-04-24 2024-08-20 Ekos Corporation Ultrasound therapy system
US10188410B2 (en) 2007-01-08 2019-01-29 Ekos Corporation Power parameters for ultrasonic catheter
US10182833B2 (en) 2007-01-08 2019-01-22 Ekos Corporation Power parameters for ultrasonic catheter
US11925367B2 (en) 2007-01-08 2024-03-12 Ekos Corporation Power parameters for ultrasonic catheter
US9044568B2 (en) 2007-06-22 2015-06-02 Ekos Corporation Method and apparatus for treatment of intracranial hemorrhages
US11672553B2 (en) 2007-06-22 2023-06-13 Ekos Corporation Method and apparatus for treatment of intracranial hemorrhages
US9717896B2 (en) 2007-12-18 2017-08-01 Gearbox, Llc Treatment indications informed by a priori implant information
US9672471B2 (en) 2007-12-18 2017-06-06 Gearbox Llc Systems, devices, and methods for detecting occlusions in a biological subject including spectral learning
US8280484B2 (en) 2007-12-18 2012-10-02 The Invention Science Fund I, Llc System, devices, and methods for detecting occlusions in a biological subject
US8317776B2 (en) 2007-12-18 2012-11-27 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US8403881B2 (en) 2007-12-18 2013-03-26 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US8870813B2 (en) 2007-12-18 2014-10-28 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US8409132B2 (en) 2007-12-18 2013-04-02 The Invention Science Fund I, Llc Treatment indications informed by a priori implant information
US8636670B2 (en) 2008-05-13 2014-01-28 The Invention Science Fund I, Llc Circulatory monitoring systems and methods
US9849273B2 (en) 2009-07-03 2017-12-26 Ekos Corporation Power parameters for ultrasonic catheter
US9192566B2 (en) 2010-02-17 2015-11-24 Ekos Corporation Treatment of vascular occlusions using ultrasonic energy and microbubbles
US8740835B2 (en) 2010-02-17 2014-06-03 Ekos Corporation Treatment of vascular occlusions using ultrasonic energy and microbubbles
WO2012023140A1 (fr) 2010-08-18 2012-02-23 Sasi Solomon Dispositif et procédé de détection d'un embole se déplaçant dans un vaisseau sanguin
US10888657B2 (en) 2010-08-27 2021-01-12 Ekos Corporation Method and apparatus for treatment of intracranial hemorrhages
US11458290B2 (en) 2011-05-11 2022-10-04 Ekos Corporation Ultrasound system
US9579494B2 (en) 2013-03-14 2017-02-28 Ekos Corporation Method and apparatus for drug delivery to a target site
US10507320B2 (en) 2014-09-22 2019-12-17 Ekos Corporation Catheter system
US10092742B2 (en) 2014-09-22 2018-10-09 Ekos Corporation Catheter system
US10656025B2 (en) 2015-06-10 2020-05-19 Ekos Corporation Ultrasound catheter
US11740138B2 (en) 2015-06-10 2023-08-29 Ekos Corporation Ultrasound catheter
US10322230B2 (en) 2016-06-09 2019-06-18 C. R. Bard, Inc. Systems and methods for correcting and preventing occlusion in a catheter
US12005228B2 (en) 2016-06-09 2024-06-11 C. R. Bard, Inc. Systems and methods for correcting and preventing occlusion in a catheter

Also Published As

Publication number Publication date
DE60335921D1 (de) 2011-03-10
CN1878504A (zh) 2006-12-13
US20070213613A1 (en) 2007-09-13
EP1685800A4 (fr) 2009-04-29
EP1685800B1 (fr) 2011-01-26
EP1685800A1 (fr) 2006-08-02
WO2005046482A1 (fr) 2005-05-26

Similar Documents

Publication Publication Date Title
US7789830B2 (en) Thrombus detecting apparatus, thrombus treating apparatus and methods therefor
US10772490B2 (en) Monitoring device and method of operating the same
KR101583302B1 (ko) 진단 치료 겸용 광융합형 초음파기기
WO2015015932A1 (fr) Appareil de génération d'image photoacoustique et procédé de commande de source de lumière
JP6374012B2 (ja) 光音響画像生成装置
WO2016051734A1 (fr) Appareil d'acquisition d'informations d'objet
JP2005505332A (ja) 非侵襲性バイオフィードバックシグナルを用いるシステム
JPWO2007069775A1 (ja) 照射位置確認機能を有する医療用超音波装置
JP4334819B2 (ja) 血栓検出装置及び血栓治療装置
US20230355217A1 (en) Internal bleeding detection, assessment and monitoring devices, systems and methods
JP2016123520A (ja) 治療装置
JP6211497B2 (ja) 光音響画像生成装置
US4700711A (en) Ultrasonic detector with integral confidence tests
US20180368696A1 (en) Object information acquiring apparatus and object information acquiring method
JP4739878B2 (ja) 脳循環血流測定装置
KR20120046521A (ko) 초음파 진단장치
RU184396U1 (ru) Ультразвуковое устройство для диагностики аномалий физической плотности
JP2009183454A (ja) 周波数減衰特性を利用した超音波検査装置又は超音波照射位置検査方法
JP6534493B2 (ja) 光音響計測装置
JP2016064010A (ja) 光音響画像生成装置
WO2014115042A1 (fr) Mécanisme de sécurité pour système d'imagerie photoacoustique
JP2018153604A (ja) 光音響装置およびその制御方法、ならびに光音響プローブ
JP7529211B2 (ja) 超音波装置
JP7135837B2 (ja) 成分濃度測定装置
RU2604704C2 (ru) Мониторинг послеродового кровотечения

Legal Events

Date Code Title Description
AS Assignment

Owner name: HITACHI MEDICAL CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ISHIDA, KAZUNARI;KAGA, MIKIHIRO;FUJITA, NAOTO;AND OTHERS;SIGNING DATES FROM 20060516 TO 20060521;REEL/FRAME:018765/0811

Owner name: HITACHI MEDICAL CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ISHIDA, KAZUNARI;KAGA, MIKIHIRO;FUJITA, NAOTO;AND OTHERS;REEL/FRAME:018765/0811;SIGNING DATES FROM 20060516 TO 20060521

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20140907